Distribution of colorectal cancer (CRC) diagnosed between 1976–78 and 1990–97
| Site | No (%) CRC/site 1976–7818 | No (%) CRC/site 1990–97 |
| Proximal | 292 (23.6) | 1890 (36.7) |
| Distal | 339 (27.2) | 1398 (27.1) |
| Rectal | 551 (44.4) | 1643 (31.9) |
| Unknown | 59 (4.8) | 183 (3.5) |
| Multiple | 0 (0.0) | 39 (0.8) |
| Total | 1241 (100) | 5153 (100) |